Wrench



Oct. 21 1924.

1,5180 W. (I. KISNER f -WRENCH I Filed Nov. 26. 192 3 Afro/away Patented@et. 21, 1924.

WILLIAM C. KISNER, 033 WATSON, WEST VIRGINIA.

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Application filed November 26, 1923. Serial No. 676,952.

certain new and useful Improvements in Wrenches, of which the followingis a specification.

This invention relates broadly to adjustable wrenches, and morespecifically to a wrench of the well known type in which one jaw, formedintegral with and disposed at substantially a right angle to a toothedrack bar, is adjustable relative to the other jaw by rotation of aknurled worm disposed in cooperative relation to said rack bar.

The primary object of the invention is to provide a wrench of the typementioned which has a construction adapting it for use in the manner ofa ratchet wrenchthat is to say, which may be rotated or swung rearwardfor obtaining a new hold, following forward movement, without whollywithdrawing or disengaging its jaws from the nut or other object uponwhich it operates.

A further object is to provide a wrench of the character referred towhich firmly grips the engaged nut during forward, or advancing,movement of the latter, and which, when moved rearward, automaticallyreleases the nut to the extent that its jaws freely ride over thelatter.

With these and other objects in view, the invention resides in thefeatures of construction which will hereinafter be fully described,reference being had to the accompanying drawings, in which 7 Figure 1 isa side elevation of a wrench embodying the invention; and

Figure 2 is a fragmentary detail section of the same.

Referring to said drawings, 1 indicates generally a head portion, 2 anintegral shank or handle, 3 an adjustable jaw, 4: a rack bar formedintegral with and disposed at substantially a right angle to said jaw 3,5 a transverse passageway in said head and in which said rack bar islongitudinally movable for positioning said jaw 3, and 6 a knurled wormoperatively engaged with said rack bar, all of said parts, exceptingsaid jaw 3, being of the usual forms and constituting parts of anadjustable wrench of a common type.

Disposed in opposing relation to the adjustable jaw 3 is a jaw 7 whichis shiftablc relative to said jaw 3,'having anintegrai rearwardlyextending tongue 8 which is mounted for sliding movement in a channel orchamber 9 provided therefor in the wrench head 1, said chamber as hereinshown being disposed in a common plane with the passageway 5 and joiningthe inner end of the latter, 7 I

The tongue 8 carries on its rear end an integral rearwardly and inwardlyinclined arm or shank 10 which is slidably received within acorrespondingly inclined socket 11 provided therefor in thelwrenchhead 1. A slot 12 inclined so as to lie substantially parallel to theplane of the axis of said shank 10 is provided in the tongue 8, andextending through said slot is a pin'13 which has its opposite endsmounted in the opposite walls of the head adjacent to the outer orforward end of said chamber 9,, as shown, The shank 10 and the pin 13cooperate, re spectively, with the socket 11 and the slot 12 for guidingmovements of the jaw 7 as the latter is shifted to and from cooperativenut-gripping relation to the adjustable jaw 3.

In practice, having first positioned the jaw 7 in its retractedoperative position shown in full lines in Figs. 1 and 2, the jaw 8 isadjusted relative thereto by rotation of the worm 6 for fitting saidjaws to the nut or other object which is to be rotated by means of thewrench. The wrench is then applied to the nut in such position thatrotating movement of the wrench in the direction indicated by the arrowin Fig.

, 1 will efiect turning of the nut in the desired direction. Rearward orreturn movement of the wrench without disengaging the latter from therut acts through the nut to slide the jaw outward with respect to thewrench head 1 and away from the jaw 3, as indicated in broken lines inFig. 1, the jawseparation being due to the inclination of the directionof movement with respect to the a relatively larger transverse bore orpassage 15 provided in the adjustable jaw -'3 real.- ward of the nutengaging face of the latter. will be obvious that various minor changesin the forms of some of the parts of the wrench described maybe madewithout departure :tro nthe spirit or'scop e of t e n nt e a d fin d n 11 appende l ms What is claimed is-- l. A wrench comprising a headportion a t ans e s r essw y' h f ia a having an i t g al r cka di po ea P s es way, a n w e a e ith s ram-bar and rotatable to effectadjustment of the position oi said jawyand 'a jaw carried by saidhead inopposing relation to said adjustable aw and slidable to and fromcooperative relation'to the latter in a direction' inclined relative tothe plane of its nut-engaging face. i

2. A wrench comprising a head portion having a transverse passagewaytherein, a jaw having an integral rack-bar disposed in said passageway,a worm engaged with said rackJoa'r and rotatableto effect-adjustment ofthe position of said jaw, and a second. jaw carried by said head"portion and slidable to and from cooperative nut-engaging relation tosail adjustable jaw, said second jaw being adapted to finain stationaryin said relation when the rench is rotated in one directioniand toslide'to nut-releasing position when reverse rotation is imp'ai ted'tosaid wrench. A Wr n h mp n a head p rt on, a jawca'rried by said headportion andadb s ab i a dir c n TflBSV6T$ t the Ttter', sai d porti onrecess thereinj a secondjaw disposed iii 'oppoi 1g relat' to saidadjustable jaw and havingato gee slidable in "said recess, meanscooperating to guide outward and inward ending n eme s f aid'te in "d rti a a angle to the axis 'ofa nut interposed between s iar fvli li r sal es i d'jaw' s ned n cl sely c eratin r on t said a ji l a ijar dorwafd" e of such nut and is actuated by rearward rotation of the wrenchto move to nut-releasing posses? i 4:. A wrench comprising a headportion, a jaw carried by said head portion and adjustable in adirection transverse to the latter; said'portionhaving a recess therein,a second jaw disposed in opposing relation to said adjustable jaw andhaving a tongue disposed in said recessfsa id second jaw be ing slidable to and from cooperative nuts iipri e on t id e i's ta j w, saidhead portion and said tongue being providechwith cooperating guidingmeans whereby said second jaw is actuated to more outward in a directioninclined with respect to the planeof the nut-engagingllface or thelatter by rearward rotation ofthe wrench when in engagement with ainterposed between said jaws, and a laterally disposed arn'i ca 'ried bysaidtongue.

' A wrench comprising a head portion, a jaw carried by said head portionand'adjustable in a direction transverse to the latter, said jaw havinga passage therethrough rearward of its nut-engaging face, said headportion having a recess therein, a second jaw disposed in opposingrelationto said adjustable jaw and having a tongue received insaidrecess, said tongue being adapted for slidinginoveinent tor'carryingsaid second aw into and out of cooperative nut-gripping relation to''said second jaw in directions inclined with respect to the plane of theaxis of'a nut acted ape-e, whereby sa' second aw is'inai itaine'd inseated relatio [to such nut d n "n'g' forward rota tion Gi t-lie wrenchand is actuated to move to nut-releasing position bjfrearward rota tionof the wrench, and an arm; carried by said second j awr earwafrd ojfitsnut-engagfal-ce and to be engaged loy such iut for 'retuiiii igsaidsecond jaw to its operative position, the t'ree or" said arm beingreceived within the passage"ortlie adjustable jaw. In testimony whereof,I atlix my signature in presence of two subscribing witnesses.

" lVILLIAM Cl llVitnessesi it l v M 'EAiiL C. Sl mming,

e Wises-

